Physiological Impact of Plant Growth Regulators in Cotton

J. Tom Cotbran and Derrick M. Oosterhuis


 
ABSTRACT

Plant growth regulators (PGRs) allow for manipulation of physiological processes in cotton growth and development. Timings for PGR use range from infurrow application at planting to foliar applications in late season to enhance defoliation and facilitate harvest. PGRs vary in structure and function and typically cause the same responses as naturally produced hormones. Physiological changes from PGR treatment include increased photosynthetic rates, altered nutrient uptake, and improved water status of the plant. Numerous morphological changes are also caused by PGR treatment.



Reprinted from 1993 Proceedings Beltwide Cotton Conferences pp. 128 - 132
©National Cotton Council, Memphis TN

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Document last modified Sunday, Dec 6 1998